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Laptop randomly losses internet connection

monlov

Posted 12 June 2009 - 12:51 PM

monlov

Member

Member

14 posts

Hi,
Thank you for looking. I'll try and let you know everything I think that you will need. I have an HP pavilion dv2000 laptop running windows vista 32 bit, with a broadcom 802.11b/g wan and a Nvidia nforce network controller. I have verizon fios broadband, with verizon's ultraline series 3 modem and router. The computer seems to use the vista and an hp network assistant(maybe the issue?).

The problem that I am having is that the computer randomly, or seemingly randomly, losses the internet connection. It changes to a local only connection. The only way I can see to fix it is to restart the computer, as I tried to reset the router, reset the wireless card, disabling the TCP/ipv6, windows diagnostic, and just waiting it out . This started happening about once a month but is getting worse and now happens about every two days. It doesn't just happen on my home wireless router but it has also happened at my parents house, in laws house and at school. If after it loses the internet wirelessly and I connect to the router with a wire it still will not recognize the internet. I have been trying, unsuccessfully, to get help from HP but they are not understanding what is happening and are just blaming the ISP. But this doesn't explain the fact that I have another laptop and a desktop hooked t0 the same router and they are fine, along with the fact that it happens at other locations.

Thanks for your help and hopefully this makes sense. Let me know if you need any other information.

Matt

EDIT:
Just wanted to say that the other laptop and the desktop are running windows XP.

DragonMaster Jay

Posted 13 June 2009 - 10:34 AM

happyrock

Posted 13 June 2009 - 10:44 AM

happyrock

Tech Moderator

Retired Staff

9,285 posts

make sure you have DHCP enabled...

When a DHCP-configured client (a computer or any other network-aware device) connects to a network, the DHCP client sends a broadcast query requesting necessary information from a DHCP server. The DHCP server manages a pool of IP addresses and information about client configuration parameters such as default gateway, domain name, the DNS servers, other servers such as time servers, and so forth. On receiving a valid request, the server assigns the computer an IP address, a lease (length of time the allocation is valid), and other IP configuration parameters, such as the subnet mask and the default gateway. The query is typically initiated immediately after booting, and must complete before the client can initiate IP-based communication with other hosts.

monlov

Posted 13 June 2009 - 10:47 AM

monlov

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Topic Starter

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14 posts

Dragonmaster jay,
I think so, On the advanced tab of the windows firewall settings broadband, LAN and wireless are checked. Is there anything in particular that I should look for on the exceptions tab.

happyrock,
How do I check to see if I have DHCP enabled?

edit: I searched around and I am pretty sure that I have DHCP enabled, having it obtain an IP and DNS automaticly.

Dan

Posted 15 June 2009 - 04:16 AM

When you lose the connection, what happens if you release/renew your IP?

Step 1 - Attempt to release and renew your IP:

Select Start

In the Start Search field type cmd -- right-click on the cmd program and choose Run as administrator

In the new command prompt window, please type the following commands:

ipconfig /release

ipconfig /renew

*Note: If the above commands generate an error, please post the error.If the issue is occurring at your parents house as well, then like you suggested, it's unlikely to be an issue with your ISP.

The next time you lose your connection, do a connectivity test and post the results.

Step 2 - Connectivity test:

Select Start

In the Start Search field type cmd -- right-click on the cmd program and choose Run as administrator

In the new command prompt window, please type the following commands (*Note: each ping will take approximately 10 seconds to complete; wait for the command prompt to return before you type the next one. Also, the single '>' and double '>>' are intentional; please type the commands exactly as they appear):

ipconfig /all > C:\results.txt

route print >> C:\results.txt

ping 127.0.0.1 >> C:\results.txt

ping google.com >> C:\results.txt

ping 209.85.171.100 >> C:\results.txt

Once the above commands have completed, navigate to your C: drive and open the text file results.txt -- please copy/paste the contents of this file into your next response.

Also, check your event log for any errors/warnings that may pop up around the time that you lose the connection.

Step 3 - Event Log/Viewer errors/warnings:

Select Start

In the Start Search field type eventvwr and press the ENTER key

In the new window, expand Windows Logs and then select System -- this will display a list of all system events. Look for any errors and/or warnings (denoted by a red 'x' or a yellow '!'). If you find any, please post the relevant heading, along with the details inside by double clicking on the error/warning, and then copy/pasting the information from within.*Note: You'll mainly be looking for DHCP and TCP/IP errors/warnings -- however any and all errors may be relevant.

-2:12:46The DHCP allocator has disabled itself on IP address 192.168.1.4, since the IP address is outside the192.168.0.0/255.255.255.0 scope from which addresses are being allocated to DHCP clients. To enable the DHCPallocator on this IP address, change the scope to include the IP address, or change the IP address to fall within the scope.

-2:18:42The DHCP allocator has disabled itself on IP address 192.168.1.4, since the IP address is outside the 192.168.0.0/255.255.255.0 scope from which addresses are being allocated to DHCP clients. To enable the DHCP allocator on this IP address, change the scope to include the IP address, or change the IP address to fall within the scope.

-2:19:09The DNS proxy agent was unable to allocate 0 bytes of memory. This may indicate that the system is low on virtual memory, or that the memory manager has encountered an internal error.

-2:19:09The DHCP allocator has disabled itself on IP address 192.168.1.4, since the IP address is outside the 192.168.0.0/255.255.255.0 scope from which addresses are being allocated to DHCP clients. To enable the DHCP allocator on this IP address, change the scope to include the IP address, or change the IP address to fall within the scope.

and in between the last two was a normal event that I though might be something?

user-pnpDriver Management has concluded the process to add Service tunnel for Device Instance ID ROOT\*ISATAP\0019 with the following status: 0

diabillic

Posted 16 June 2009 - 01:00 PM

diabillic

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1,370 posts

2:18:42The DHCP allocator has disabled itself on IP address 192.168.1.4, since the IP address is outside the 192.168.0.0/255.255.255.0 scope from which addresses are being allocated to DHCP clients. To enable the DHCP allocator on this IP address, change the scope to include the IP address, or change the IP address to fall within the scope.

Apparently it thinks that your network isnt really "your" network. Trying deleting the connection profile from the Network and Sharing Center then reconnect the wifi.

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monlov

Posted 16 June 2009 - 01:35 PM

monlov

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Topic Starter

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14 posts

Trying deleting the connection profile from the Network and Sharing Center then reconnect the wifi.

Hey diabillic, thanks for responding. I deleted the connection profile and then reconnected but it still wont connect to the internet. I looked in the event viewer I can see where it gave me an IP then connected and then it gave the same error as you quoted again. The network and sharing center "thinks" its connected to the internet and still has the globe in the network icon by the clock.

Dan

Posted 16 June 2009 - 07:38 PM

Dan

Trusted Tech

Retired Staff

1,771 posts

Going back to your original post:

The computer seems to use the vista and an hp network assistant(maybe the issue?).

It sounds like either Vista (WLAN) or your network assistant is trying to connect to different networks and thus causing you to lose your connection. I would strongly recommend that you remove the HP network assistant and simply use Vista's WLAN functionality to handle your wifi connections. Ensure that your network is the preferred network, and that you do not have the option to connect to 'better connections' checked (I can't remember the exact name off the top of my head).

diabillic

Posted 16 June 2009 - 09:54 PM

diabillic

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1,370 posts

Going back to your original post:

The computer seems to use the vista and an hp network assistant(maybe the issue?).

It sounds like either Vista (WLAN) or your network assistant is trying to connect to different networks and thus causing you to lose your connection. I would strongly recommend that you remove the HP network assistant and simply use Vista's WLAN functionality to handle your wifi connections. Ensure that your network is the preferred network, and that you do not have the option to connect to 'better connections' checked (I can't remember the exact name off the top of my head).

monlov

Posted 17 June 2009 - 06:50 AM

monlov

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Topic Starter

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14 posts

Thanks again everybody.
I deleted the hp network assistant deselected the connect to a more preferred network and restarted, so hopefully this will work. If it doesn't go down I will be back in two to three days to let you know that things look good (while simultaneously knocking on the wooden table).

monlov

Posted 22 June 2009 - 01:52 PM

monlov

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Topic Starter

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14 posts

sorry I didn't get back earlier. The laptop is still having the same issues. It seems as though it happens more often when I am using youtube or other sites that use alot of bandwidth, but that could just be a coincidence.